390539232 has 120 divisors (see below), whose sum is σ = 1216264896. Its totient is φ = 122508288.

The previous prime is 390539221. The next prime is 390539251. The reversal of 390539232 is 232935093.

390539232 is a `hidden beast` number, since 3 + 90 + 539 + 2 + 32 = 666.

It is a super-2 number, since 2×390539232² = 305041783462299648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39633 + ... + 48495.

Almost surely, 2^390539232 is an apocalyptic number.

390539232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390539232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608132448).

390539232 is an abundant number, since it is smaller than the sum of its proper divisors (825725664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390539232 is a wasteful number, since it uses less digits than its factorization.

390539232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8902 (or 8885 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 390539232 is about 19762.0654790940. The cubic root of 390539232 is about 730.9509293777.

The spelling of 390539232 in words is "three hundred ninety million, five hundred thirty-nine thousand, two hundred thirty-two".